Putting cup



FIG. 1 is a top side perspective view of a new putting cup;

FIG. 2 is a top view thereof;

FIG. 3 is a cross-sectional view of the putting cup of FIG. 2 taken along line 3-3 thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a bottom view thereof.

The portion of the putting cup shown in phantom is for illustrative purposes only and does not form any portion of the claimed design. 

The ornamental design for a putting cup, as shown and described. 